/* =========================================================================
   Runbook — app styles
   Mobile-first, system-font-stack, CSS variables, no framework.
   Dark mode via prefers-color-scheme.
   ========================================================================= */

:root {
  --bg:          #f7f7f5;
  --surface:    #ffffff;
  --surface-2: #faf9f6;
  --border:    #e8e6e1;
  --border-strong: #d6d3cc;
  --ink:       #1a1a1a;
  --ink-soft:  #4b4b4b;
  --muted:     #8a867e;
  --accent:    #2d5bff;
  --accent-ink: #ffffff;
  --success:   #0f9960;
  --warn:      #c2410c;
  --danger:    #c0392b;
  --shadow-sm: 0 1px 2px rgba(20,20,20,0.04), 0 1px 1px rgba(20,20,20,0.03);
  --shadow-md: 0 4px 12px rgba(20,20,20,0.06), 0 2px 4px rgba(20,20,20,0.04);
  --shadow-lg: 0 20px 50px rgba(20,20,20,0.12), 0 8px 20px rgba(20,20,20,0.06);
  --radius:    10px;
  --radius-sm: 6px;
  --radius-lg: 16px;
  --fs:        15px;
  --font:      -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --mono:      ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:          #0e0f12;
    --surface:    #16181d;
    --surface-2: #1c1f26;
    --border:    #262932;
    --border-strong: #333844;
    --ink:       #ececec;
    --ink-soft:  #bdbdbd;
    --muted:     #7f8594;
    --accent:    #6c8cff;
    --accent-ink: #0a0c12;
    --success:   #35c18c;
    --warn:      #f59e0b;
    --danger:    #ef5350;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 20px 50px rgba(0,0,0,0.5);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font: var(--fs)/1.5 var(--font);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

code { font: 0.9em/1 var(--mono); background: var(--surface-2); padding: 1px 6px; border-radius: 4px; border: 1px solid var(--border); }

/* --- Top bar ----------------------------------------------------------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 16px;
  padding: 10px 20px;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 600; }
.brand:hover { text-decoration: none; }
.brand-mark {
  display: inline-grid; place-items: center;
  width: 28px; height: 28px;
  background: var(--ink); color: var(--bg);
  border-radius: 7px; font-size: 14px;
  transform: rotate(45deg);
}
.brand-mark::before { content: ''; transform: rotate(-45deg); }
.brand-name { letter-spacing: -0.01em; }

.topnav { display: flex; gap: 4px; margin-left: 8px; }
.topnav a {
  color: var(--ink-soft);
  padding: 6px 12px; border-radius: 8px;
  font-weight: 500; font-size: 14px;
}
.topnav a:hover { background: var(--surface-2); color: var(--ink); text-decoration: none; }

.user-chip {
  position: relative; margin-left: auto;
  display: flex; align-items: center; gap: 8px;
  padding: 4px 10px 4px 4px;
  border: 1px solid var(--border);
  border-radius: 100px; cursor: pointer;
  background: var(--surface);
  transition: border-color .15s;
}
.user-chip:hover { border-color: var(--border-strong); }
.user-chip .user-name { font-size: 13px; font-weight: 500; }
.user-chip .menu {
  position: absolute; top: calc(100% + 6px); right: 0;
  min-width: 200px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; box-shadow: var(--shadow-lg);
  padding: 6px; display: none;
}
.user-chip:focus-within .menu, .user-chip:hover .menu { display: block; }
.user-chip .menu-head {
  padding: 8px 10px; font-size: 12px; color: var(--muted);
  border-bottom: 1px solid var(--border); margin-bottom: 4px;
}
.user-chip .menu a, .user-chip .menu .linklike {
  display: block; padding: 8px 10px; border-radius: 6px;
  font-size: 14px; color: var(--ink); background: none;
  border: 0; width: 100%; text-align: left; cursor: pointer;
}
.user-chip .menu a:hover, .user-chip .menu .linklike:hover {
  background: var(--surface-2); text-decoration: none;
}
.linklike { font: inherit; }

/* --- Container --------------------------------------------------------- */
.container { max-width: 1200px; margin: 0 auto; padding: 24px 20px 80px; }

/* --- Hero -------------------------------------------------------------- */
.hero {
  display: flex; justify-content: space-between; align-items: flex-end;
  gap: 16px; margin-bottom: 24px;
}
.hero h1 {
  margin: 0; font-size: clamp(24px, 3.2vw, 32px);
  letter-spacing: -0.02em; line-height: 1.15;
}
.hero p { margin: 6px 0 0; }

/* --- Buttons ----------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 16px; border-radius: 8px;
  font: 500 14px/1 var(--font);
  border: 1px solid var(--border);
  background: var(--surface); color: var(--ink);
  cursor: pointer; text-decoration: none;
  transition: transform .05s, background .15s, border-color .15s;
}
.btn:hover { background: var(--surface-2); border-color: var(--border-strong); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn.primary {
  background: var(--ink); color: var(--bg); border-color: var(--ink);
}
.btn.primary:hover { background: var(--ink); opacity: 0.88; }
.btn.ghost { background: transparent; }
.btn.sm { padding: 6px 10px; font-size: 13px; }

/* micro button — for inline task actions */
.micro {
  background: transparent; border: 1px solid var(--border);
  padding: 3px 8px; font: 500 11px/1.2 var(--font);
  color: var(--ink-soft); border-radius: 5px;
  cursor: pointer; letter-spacing: 0.01em;
}
.micro:hover { background: var(--surface-2); color: var(--ink); }
.micro.danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 30%, var(--border)); }
.micro.danger:hover { background: color-mix(in srgb, var(--danger) 8%, var(--surface)); }

/* --- Cards & grids ----------------------------------------------------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}
.card-head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 16px; gap: 8px;
}
.card-head h2 { margin: 0; font-size: 15px; letter-spacing: -0.005em; font-weight: 600; }

.grid { display: grid; gap: 20px; }
.grid.cols-2 { grid-template-columns: 1fr; }
.grid.cols-3 { grid-template-columns: 1fr; }
.span-2 { grid-column: auto; }
@media (min-width: 900px) {
  .grid.cols-2 { grid-template-columns: 1fr 1fr; }
  .grid.cols-3 { grid-template-columns: 2fr 1fr; }
  .span-2 { grid-column: span 1; }
}

/* --- Forms ------------------------------------------------------------- */
.stack { display: flex; flex-direction: column; gap: 14px; }
.row   { display: grid; gap: 14px; }
@media (min-width: 620px) { .row { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); align-items: end; } }

label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--ink-soft); font-weight: 500; }
input, select, textarea {
  font: inherit;
  padding: 10px 12px;
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  width: 100%;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}
textarea { resize: vertical; min-height: 70px; }

.alert {
  background: color-mix(in srgb, var(--danger) 10%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--danger) 30%, var(--border));
  color: var(--danger); padding: 10px 14px;
  border-radius: var(--radius-sm); font-size: 14px;
  margin-bottom: 14px;
}

/* --- Auth page --------------------------------------------------------- */
.auth-body {
  min-height: 100vh;
  display: grid; place-items: center;
  background:
    radial-gradient(1200px 500px at 10% 10%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 60%),
    radial-gradient(900px 400px at 90% 90%, color-mix(in srgb, var(--success) 15%, transparent), transparent 60%),
    var(--bg);
  padding: 20px;
}
.auth-card {
  width: 100%; max-width: 400px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-lg);
}
.auth-brand { text-align: center; margin-bottom: 24px; }
.auth-brand .brand-mark { margin: 0 auto 12px; display: grid; }
.auth-brand h1 { margin: 0 0 4px; font-size: 22px; letter-spacing: -0.01em; }

/* --- Helpers ----------------------------------------------------------- */
.muted { color: var(--muted); }
.tiny { font-size: 12px; }
.empty { color: var(--muted); font-style: italic; margin: 0; padding: 8px 0; }
.back {
  display: inline-block; margin-bottom: 12px;
  font-size: 13px; color: var(--ink-soft);
}

/* --- Avatars ----------------------------------------------------------- */
.avatar {
  --c: var(--accent);
  display: inline-grid; place-items: center;
  width: 28px; height: 28px;
  background: var(--c);
  color: #fff;
  border-radius: 50%;
  font: 600 11px/1 var(--font);
  letter-spacing: 0.02em;
  flex-shrink: 0;
  box-shadow: 0 0 0 2px var(--surface);
}
.avatar.xs { width: 22px; height: 22px; font-size: 9px; }
.avatar.unassigned { background: var(--surface-2); color: var(--muted); box-shadow: inset 0 0 0 1px var(--border); }

/* --- Runbook list rows ------------------------------------------------- */
.rb-list { list-style: none; margin: 0; padding: 0; }
.rb-list li + li { border-top: 1px solid var(--border); }
.rb-list.nested { margin-left: 8px; }

.rb-row {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 4px;
  color: var(--ink);
}
.rb-row:hover { text-decoration: none; background: var(--surface-2); border-radius: 8px; }

.rb-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--muted); flex-shrink: 0;
}
.rb-dot.prio-low      { background: #94a3b8; }
.rb-dot.prio-normal   { background: var(--accent); }
.rb-dot.prio-high     { background: var(--warn); }
.rb-dot.prio-critical { background: var(--danger); box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger) 20%, transparent); }

.rb-row-main { flex: 1; min-width: 0; }
.rb-row-title { font-weight: 500; letter-spacing: -0.005em; }
.rb-row-meta { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; margin-top: 2px; font-size: 12px; }

.rb-row-stats { text-align: right; flex-shrink: 0; }
.rb-row-stats strong { font-size: 16px; font-variant-numeric: tabular-nums; }
.rb-row-stats .muted { font-size: 12px; }

/* --- Pills ------------------------------------------------------------- */
.pill {
  display: inline-flex; align-items: center;
  padding: 2px 8px; border-radius: 100px;
  font: 500 11px/1.5 var(--font);
  background: var(--surface-2); color: var(--ink-soft);
  border: 1px solid var(--border);
  letter-spacing: 0.01em;
  text-transform: capitalize;
}
.pill.tiny { padding: 1px 6px; font-size: 10px; }
.pill-active     { background: color-mix(in srgb, var(--success) 15%, var(--surface)); color: var(--success); border-color: color-mix(in srgb, var(--success) 30%, var(--border)); }
.pill-paused     { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 30%, var(--border)); }
.pill-completed  { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 30%, var(--border)); }
.pill-archived   { color: var(--muted); }
.pill-overdue    { background: color-mix(in srgb, var(--danger) 12%, var(--surface)); color: var(--danger); border-color: color-mix(in srgb, var(--danger) 30%, var(--border)); }
.pill-mine       { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.pill-prio-low      { color: var(--muted); }
.pill-prio-normal   { color: var(--ink-soft); }
.pill-prio-high     { background: color-mix(in srgb, var(--warn) 12%, var(--surface)); color: var(--warn); border-color: color-mix(in srgb, var(--warn) 30%, var(--border)); }
.pill-prio-critical { background: color-mix(in srgb, var(--danger) 12%, var(--surface)); color: var(--danger); border-color: color-mix(in srgb, var(--danger) 30%, var(--border)); }

/* --- Activity feed ----------------------------------------------------- */
.feed { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.feed li { display: flex; gap: 12px; align-items: flex-start; }
.feed-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--muted); margin-top: 7px; flex-shrink: 0;
}
.feed-dot.verb-created   { background: var(--accent); }
.feed-dot.verb-completed { background: var(--success); }
.feed-dot.verb-status    { background: var(--warn); }
.feed-dot.verb-commented { background: var(--muted); }
.feed-line { font-size: 14px; }
.feed-line em { font-style: normal; color: var(--ink-soft); }

/* --- Task list (flat) -------------------------------------------------- */
.task-list { list-style: none; margin: 0; padding: 0; }
.task-list li + li { border-top: 1px solid var(--border); }
.task-row a {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px; align-items: center;
  padding: 12px 4px;
  color: var(--ink);
}
.task-row a:hover { background: var(--surface-2); border-radius: 8px; text-decoration: none; }
.task-status {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--surface-2);
  border: 2px solid var(--border-strong);
}
.task-status.s-in_progress { background: var(--accent); border-color: var(--accent); }
.task-status.s-blocked     { background: var(--danger); border-color: var(--danger); }
.task-status.s-done        { background: var(--success); border-color: var(--success); }
.task-status.s-cancelled   { background: var(--surface-2); border-style: dashed; }
.task-title { font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.task-meta  { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

/* --- Tree (browse page) ----------------------------------------------- */
.tree { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 8px; }
.tree-node { margin: 4px 0; }
.tree-node > summary {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  list-style: none;
  user-select: none;
  font-weight: 500;
}
.tree-node > summary:hover { background: var(--surface-2); }
.tree-node > summary::-webkit-details-marker { display: none; }
.chevron {
  display: inline-block;
  transition: transform .15s;
  color: var(--muted);
  font-size: 14px;
  width: 12px;
}
.tree-node[open] > summary > .chevron { transform: rotate(90deg); }
.node-code {
  margin-left: auto; font: 500 11px/1 var(--mono);
  color: var(--muted);
  padding: 3px 6px; background: var(--surface-2);
  border-radius: 4px; border: 1px solid var(--border);
}
.tree-body { padding: 4px 8px 8px 30px; }

.tree-node.dep > summary  { font-size: 14px; color: var(--ink-soft); }
.tree-node.team > summary { font-size: 13px; color: var(--muted); }

/* --- Runbook detail page ---------------------------------------------- */
.rb-header {
  display: flex; justify-content: space-between; align-items: flex-start; gap: 16px;
  margin-bottom: 20px;
}
.rb-header h1 { margin: 6px 0 6px; font-size: clamp(22px, 3vw, 28px); letter-spacing: -0.015em; line-height: 1.2; }
.rb-header .summary { color: var(--ink-soft); margin: 0; max-width: 70ch; }
.rb-badges { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }

.rb-header-side { display: flex; flex-direction: column; gap: 10px; align-items: flex-end; flex-shrink: 0; }
.owner { display: flex; align-items: center; gap: 10px; }
.owner .avatar { box-shadow: none; }

@media (max-width: 700px) {
  .rb-header { flex-direction: column; align-items: stretch; }
  .rb-header-side { align-items: flex-start; }
}

/* --- Stat strip ------------------------------------------------------- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px; margin-bottom: 20px;
}
@media (min-width: 640px)  { .stat-row { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 900px)  { .stat-row { grid-template-columns: repeat(6, 1fr); } }
.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  display: flex; flex-direction: column; gap: 2px;
}
.stat-n { font: 600 22px/1 var(--font); letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.stat-l { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }
.stat.stat-action { justify-content: center; align-items: flex-start; }
.stat.stat-action .btn { padding: 6px 10px; font-size: 12px; }

/* --- Board ------------------------------------------------------------ */
.board {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
@media (min-width: 700px)  { .board { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .board { grid-template-columns: repeat(4, 1fr); } }
.board-col {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
  min-height: 80px;
}
.board-col > header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 2px 4px 8px;
  font-size: 12px; font-weight: 600;
  color: var(--ink-soft);
  text-transform: uppercase; letter-spacing: 0.06em;
}
.board-col > ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }

.task-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  box-shadow: var(--shadow-sm);
  transition: transform .08s, box-shadow .15s;
}
.task-card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }
.task-card.prio-high     { border-left-color: var(--warn); }
.task-card.prio-critical { border-left-color: var(--danger); }
.task-card.prio-low      { border-left-color: var(--muted); }

.task-card-title { font-weight: 500; letter-spacing: -0.003em; }
.task-card-body  { margin-top: 6px; font-size: 12.5px; color: var(--ink-soft); line-height: 1.4; }
.task-card-foot {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  margin-top: 10px;
}
.task-actions { margin-left: auto; display: flex; gap: 4px; flex-wrap: wrap; }

/* --- Member & comment lists ------------------------------------------ */
.member-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.member-list li { display: flex; align-items: center; gap: 10px; }
.member-list li > button { margin-left: auto; }

.cmt-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.cmt-list li { display: flex; gap: 10px; }
.cmt-body { font-size: 13.5px; margin-top: 2px; color: var(--ink); }

/* --- Panel (modal-ish side sheet) ------------------------------------- */
.panel {
  position: fixed; inset: 0; z-index: 100;
  background: color-mix(in srgb, var(--ink) 45%, transparent);
  display: flex; justify-content: flex-end;
  animation: fadein 0.15s ease;
}
.panel[hidden] { display: none; }
.panel-card {
  width: min(480px, 100%);
  height: 100%;
  background: var(--surface);
  border-left: 1px solid var(--border);
  display: flex; flex-direction: column;
  animation: slidein 0.2s ease;
}
@keyframes fadein { from { opacity: 0; } to { opacity: 1; } }
@keyframes slidein { from { transform: translateX(20px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

.panel-card > header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.panel-card > header h3 { margin: 0; font-size: 16px; }
.panel-card .x {
  width: 32px; height: 32px; border: 0; border-radius: 8px;
  background: transparent; color: var(--ink-soft);
  font-size: 22px; cursor: pointer;
}
.panel-card .x:hover { background: var(--surface-2); }

.panel-card form {
  padding: 20px;
  display: flex; flex-direction: column; gap: 14px;
  overflow: auto; flex: 1;
}
.panel-card form > footer {
  display: flex; gap: 10px; justify-content: flex-end;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

#members-editor { padding: 20px; overflow: auto; flex: 1; display: flex; flex-direction: column; gap: 14px; }
.member-search { position: relative; }
.results {
  list-style: none; margin: 6px 0 0; padding: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  max-height: 240px; overflow: auto;
  box-shadow: var(--shadow-md);
  display: none;
}
.results.open { display: block; }
.results li { padding: 8px 10px; border-radius: 6px; cursor: pointer; display: flex; align-items: center; gap: 8px; }
.results li:hover { background: var(--surface-2); }

/* --- Summary viewer --------------------------------------------------- */
.summary-view {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin-top: 14px;
}
.summary-view h1 { font-size: 18px; margin: 0 0 10px; letter-spacing: -0.01em; }
.summary-view h2 { font-size: 13px; margin: 18px 0 6px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); font-weight: 600; }
.summary-view ul { margin: 4px 0; padding-left: 20px; }
.summary-view li { margin: 3px 0; }
.summary-view em { color: var(--muted); font-style: normal; font-size: 0.85em; }

/* --- Mobile tweaks ---------------------------------------------------- */
@media (max-width: 620px) {
  .topbar { padding: 8px 14px; gap: 10px; }
  .topnav { display: none; }   /* collapse primary nav — home btn + brand carry it */
  .user-chip .user-name { display: none; }
  .container { padding: 16px 14px 100px; }
  .hero { flex-direction: column; align-items: stretch; }
  .card { padding: 16px; border-radius: var(--radius); }
  .task-actions { width: 100%; }
}